Improvement in lightning-rod standards



w. s. nEYunN el L1. MARTIN;

l Lightning-od Standard. 10,163,807. Patentedmayzmma.

THE GRAPHIC C0.PHOTO-LITH.39&4I PARK PLACE,N.Y.

A UNITED STATES WILLIAM S. REYBURN AND FIIEDERIGK J. MARTIN, OFPHILADELPHIA, PA.

PATENT OFFICE.

IMPROVEMENT IN LIGHTNING-ROD STANDARDS,

Specilication forming part of Letters Patent No. 163,807, dated May 25,1875; application filed April 5, 1875.

To all whom 'it may concern:

Be it known that we, WILLIAM S. REYBURN and FREDERICK J. MARTIN, ofPhiladelphia, Pennsylvania, have invented a certain ImprovedLightning-Rod Standard, of which the following is a specification:

The object of our invention is to construct a cheap, substantial, andgenerally eiticient stand for the upper portions of lightningrods; andthis object we attain in the manner which we will now proceed todescribe, reference being had to the accompanying draw ings, in which-Figure l is a side view, partly in section, of our improved stand forlightningrods; Fig. 2, a top view of the upper end ofthe stand; and Fig.3, a sectional plan on the line l 2, Fig. l.

The lower portion of the stand consists of a tripod, A, the legs a c aof which are riveted or otherwise secured to a plate, b, the feet beingformed, in the present instance, for attachment to the peak of a roof.This plate b may form part of a bracket, b', for containing theinsulator, through which the lightning-rod passes, the portion forreceiving the insulator being shoivnfby dotted lines in Fig. 3.

When an'insulator so low down as the plate b is not required, the saidplate may be made of the simple form shown by plain lines in Fig. 3,with a central hole for receiving the lower end of the stem B, and threeholes for receiving the upper ends of the legs.

To a shoulder on the top of the ste-m is riveted the bracket D, forreceiving an insulator for the lightning-rod.

Whether the plate b forms part of an insu lator-bracket or not, I preferto make it of malleable cast-iron, the holes being formed during theprocess of casting, so as to obviate the necessity of drilling, the legsa and rod B being, by preference, of wrought-iron.

The structure, although simple and comparatively light, is of asubstantial and permanent character, and can be cheaply manufactured, asthere is nothing in its construction to demand skilled labor.

rIhe stem B may, in some instances, be made of a tubular sectional form,as shown in Fig. 3, this form of kstem being especially applicable towhat are known as cable-rods, which it is necessary je Enclose in a tubewhen they are carried above the roof of a building, in order to impartto them the required rigidity.

We claim as our invention- The within-described lightning-rod `standard, consisting of the legs a, plate b, which may or may not form partof a bracket for an insulator, the stem B, and insulator-bracket D, allbeing constructed and combined substan tially as and for the purpose setforth.

In testimony whereof we have signed our names to this specification inthe presence of two subscribing witnesses.

WILLIAM S. REYBURN. F. J. MARTIN.

Witnesses:

HUBERT HowsoN, HARRY SMITH.

